SEM7AC Software
Christopher Semler
Software Developer | Aviation Professional
Software built with modern tools and old‑school discipline.
Location
Yelm, Washington
Aviation
Maintenance Manager (Helicopters)
Software
C#, .NET, Web
Focus
Real‑world problem solving
Timeline terminal
C:\user\christopher\history>
GIBSON OPERATIONS CONSOLE : SESSION 01
C:\USER\CHRISTOPHER> ver NikonPrime OS [Version 0.1.0-dev] C:\USER\CHRISTOPHER> dir /od /t:w Directory of C:\USER\CHRISTOPHER 1992 <DIR> DOS_BATCH_SCRIPTS 1993 <DIR> BOOT_DRIVE_EXPERIMENTS 1994 <DIR> MENU_SYS_HACKS 1996 <DIR> FIRST_C_PROGRAMS 1998 <DIR> CPLUSPLUS_LEARNING 1999 <DIR> AOL_CHAT_TOOLS_CPP 2000 <DIR> WIN32_API_EXPERIMENTS 2002 <DIR> ARMY_AVIATION_MAINTENANCE 2010 <DIR> SYSTEMS_THINKING 2013 <DIR> TRAINING_VIDEO_SPEED_HACKS 2014 <DIR> CHECKLIST_DISCIPLINE 2022 <DIR> RETURN_TO_SOFTWARE 2026 <DIR> SEM7AC SOFTWARE 2026 <DIR> PORTFOLIO_TERMINAL C:\USER\CHRISTOPHER> type TRANSITION_TO_DEV\README.txt - Retired from Army Aviation (20 yrs) - Helicopter Maintenance Manager - Returned to software development at Mach 3 - Building a portfolio based on real experience C:\USER\CHRISTOPHER>_
About
ABOUT_ME.txt

I spent 20 years in Army Aviation maintaining helicopters and managing technical teams. That work shaped how I operate: clear steps, predictable systems, and zero guesswork.

I bring that same discipline into software. I build systems that behave consistently, are easy to trace, and follow structured workflows. Reliability isn’t a feature to me, it’s the baseline.

My focus is C#, .NET, backend logic, and internal tools built for practical use.

  • Core stack: C#, .NET, REST APIs, SQL, HTML/CSS/JS
  • Strengths: Systems thinking, debugging, structured workflows
  • Experience: Aviation maintenance, technical procedures, documentation
  • Current focus: Building practical, maintainable software
Projects
PROJECTS.log
Operations
AirTrack
AirTrack is an aviation scheduling and maintenance tracking system that centralizes aircraft hours, inspection intervals, and operational status to give flight schools real‑time visibility and reduce downtime.
.NET 8 • Blazor Server • EF Core • SQLite • Azure App Service
Repository: AirTrack Repo
Demo: AirTrack Live
Monitor
CodeActivityTracker
A real-time developer activity tracker for Windows that measures actual coding behavior using OS-level signals. Tracks typing, mouse movement, IDE interaction, idle time, and debugging state with accurate cooldown logic.
.NET 10 • Windows API • Activity Signals • Cooldown Engine
Repository: CodeActivityTracker Repo
Download: Latest Release
Documentation: View Documentation
Monitoring
Jerico
Real‑time infrastructure health monitoring system built with ASP.NET Core and Razor Pages. In development — exploring approaches for clean, reliable infrastructure monitoring.
.NET 10 • API • Razor Pages • Azure App Service
Repository: Jerico Repo
Demo: Jerico Live
Library
NuGet SystemInfo
A lightweight, zero‑dependency .NET library for retrieving CPU, memory, storage, and OS information on Windows machines.
Published on NuGet as SEM7AC.SystemInfo — includes full documentation in the repository covering cpu-provider, memory-provider, os-provider, storage-provider, win32-cpu, and all models.
Repository: SEM7AC.SystemInfo Repo
NuGet: SEM7AC.SystemInfo
Documentation: View Documentation
Contact
CONTACT.cfg

I’m actively building my career in software development and I’m always interested in meaningful work, collaboration, and projects that solve real problems. I enjoy working with people who value reliability, clear communication, and disciplined engineering.

If you’d like to connect, collaborate, or talk about opportunities, here’s how to reach me: